Example inputPOST /api/v1/x402/reverse-string
{
"text": "hello agent world"
}
Portable intent card · utility
Reverse a string. Handy for quick transforms, palindrome checks, or teaching demos without shipping a helper. Returns the reversed text as structured JSON. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.
Intent to transaction
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/reverse-string -m POST -H 'x-delx-source: intent-card-reverse-string-api' --max-amount 0.001 -b '{"text":"hello agent world"}'
{
"text": "hello agent world"
}
{
"intent": "Reverse String for Agents for an agent workflow",
"tool_name": "util_reverse_string",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/reverse-string-api.json"
}
Portable and inspectable